Device for operating trippers for belt conveyers.



PATENTED NOV. 6, 19,06. I E. J. MASON & L. J. ROBB.

DEVICE FOR OPERATING TRIPPERS FOR BELT GONVEYERS.

APPLICATION FILED JAN. 22. 1906.

H 5. u n H I) w i aa WITNES No.'B84,921. PATENTED NOV. 6, 1906. E. J. MASON & L.4 J. ROBBL' DEVICE FOR OPERATING TRIPPERS FOR BELT GONVEYERS.

APPLICATION FILED JAN. 22, 190B.

2 SHEEIB-BHEET 2;

mvzm'cas.

npllua Ilrtll cm. lvlllnmmn, n.

v PATENTED NOV. 6, 1906. E. J, MASON 6: L. J. ROBB.

DEVICE FOR OPERATING TRIPPERS FOR BELT OONVEYERS.

APPLICATION FILED JAN. 22. 1906 a sums-sum a.

.FIG.4

' WITNESSES. I NVENTORS.

fl p mw Swain;

"II Igolnu: In 60., Ilslllnamll. D. c.

ble thersslgilled in the art-to make aw y, fj peppe an drive em o y n rwentigm. Fig. 2 is an enlarged si'de view'of adapted to receive the broad belt '5, which V I construction and is mounted on wheels to ings on the frame9 are the shafts 11 and 12,

and Lnwrs J. Rpnnresidents of Pittsburg,

provemen t in Devices for Operating Trippers for Belt-Qonveyers and we do hereby declare the following to, be a. full, lear, and exact deatinga tripper for ajb elt conveyer, its object. being; to provide a simple, durable-, and efiia to at ca ly, reveri i r th tripp To these ends our, nvention comprises the novel features-5hereinafter set forth and clalmed.

7 nd; use" our inv view showing parts in different position. Fig. 4 1s a plan view of the reversing mechanism;

the journalplates hremoved. -Fig. 8 is 'a view of theactuati ng-plate removed.

- for sup eri e 1 a uit b str c u composed of beams, girders,'&c. At oppo-.

' 14, respectively. The belt 5 passes around I w th reference tothe pulley 13 that the ma- NITED STATES PATENT OFFICE.

ELLIOTT anasoiv AND EWIS J. ROBB, or ,BITTSBURG, PENNSYLVANIA,

ASSIGNQRS T0 HEYL .& PATTERSON ,nsrooaron 'rnn, vor PITTSBURG, PENNSYLVANIA, A CORPORATION or PENNSYLVANIA.

' psvlcE Fon.oRERATi G ,TRIPPERS Fons sarcoma/1535.

To all [w h mw-it may concern:

BG-ItikIIOWII that we, ELLIOTT J. MASON in thcqun ylQ All h yand State f n -v sylvania, have, invented a new and usefulImtr ion he f- Ourunven t on, relates to; a device for 0percient form of apparatus for traversing v and ention, we describe the sa e jfQll f Figure l isa side elevation,'partly broken the reversing'mechanism. "Fig. 3 is a like 5 is an endview looking in direction of arrow, Fig.4. Figs. 6 and 7 are views of Like, nnmerals represent like parts in the di re t u :ThQWWW 2 d g a e e s tab p site ends of the structure 3 are the drums 4,

carries the coal, grain, or other material to be at suitable intervals; One of the drums! is The trip erframe-Q maybe of any suitable travelon the track 10. Supported in bearupon which are mounted the pulleys 13 and these pulleys 13 and 14hinhthe' manner indicated. Ahopper or hood 15 is so arranged l Specification of Letters Patent.

Application January 22,

' Contact with his Patented Nov. h6, 19p6.

1906. Serial No. 291.208.

t erial carried u onthe belt 5 is discharged from the/top o said pulley into, the hooder hopper, w ence it passes to the proper point ofd scharge. Y i Secured to the front and rear axles of the tripper frame 19' is the cable 16,; whic'h'passles around the sheaves 1 7 and18. A: trough'19 is provided to receive. the cable l'fi'and-guide the Same; Mounted" on the shaft [20, "on

which the sheave 17 is secured,are the gearwheel 21 and the brake-wheel 22. Parallel to the shaft is the shaft 2,3, which 'c'a'iries the sprocket wheel 24 Afchain25c0nnects the sprocket wheel 8on1 the shaft 7 with. the sprocket-wheel 24, by which'power}isfcommunicated to the shaft 23'. Mounted loosely on the shaft 231are thejournal plates 26 and 2 7 whichtogether form a rockingframe 'With bearings for the pinions 2'8, 2'9, andYSO; The pinions 28 and 29 mesh with a pinio'n31 on 7 the shaft Y23 and the pinion 2 9 with the pinion 30. One or otherofjthe'pinions ,28 and 30 is normally in en agement with the gear- Wheel 21. on the sha t 20. The plate 26has the stop-screws 32, which regulate the may;- ment of the rocking frame carry ng the p nions 28, 29, and 30.' These stopscom'e into on the standard i The plate '26 is furt er provided with the elongated opening or slot 331 -Pivoted"atfl34' in the standard 35; is the actuating-plate 36.

i This plate 36 has the friction-roller 37,whicjh engages the opening 33in plate 26 Pivo'ted 6n the same shaft 34 "as the] late 36'jis the weighted arm 38, with the a justabIeweight 39 attached thereto; This arm '38 hasfthe SlOtflO, with which a pin 41 on, thefplatefifi enga es.

' A ever 42 ispivoted at 43, said lev l heifingfan elongated opening 44:, whichen'ga'ges the stop-plate 46,,with anopening 47 therein,

through which thecablel 16 passesf-This roc the cable passes, which is provided with a second spring 52 and enlargement 53. An arm 54 is pivoted at 55, the upper end of said arm being connected by the rod 56 to the lever. 57. The arm 54 has the recess 58 formed therein, With-the inclined or cam face 59 adapted to engage a roller 60 on the plate 36. A brake-band 61 is connected to; the lever 57 and to the fixed support 62. A link 63 connectsthe rod56 to the brake-band 61 and holds said band normally out of'engagement with the brake-wheel 22.

When our improved device is in use, when "the tripper is traveling in the direction of the arrow, Fig. 2, and the tripper-frame has reached the end of the trackor the point where it is desired to reverse, the enlargement 49 on thejcable 16 comes into contact with the-spring 48 and advances said spring into contact with the face-plate 46 on the lever 42. The spring acts as a cushion and relieves the lever-of a sudden jar or shock. The lever is moved over into the po'sition'indicated in Fig. 3. As said lever moves itearries with it the weighted arm 38','-and when said arm has passed the center it falls of its own Weight,'and as the slot '40 has moved in engagement with the pin 41 it is'apparent that when the end of the slot is reached the further movement of said arm will carry with it the actuating-plate 36. This plate by its movement through the connection of the roller 37 with the opening 33 in the plate 26 rocks the rocking frame and throws the pinion 28 out of'engagement with the gear- Wheel 21. At-the same time the pinion 30 is thrown into engagement with the gear-wheel 21; I The engagement of the pinion 3O with the gear-wheel 21 reverses the rotation of the sheave 17 and causes the cable and tripper to travel in the opposite direction. The tripper-frame then moves back in the opposite direction until the enlargement 53 comes in contact with the lower end of lever 42 when in the position shown in Fig. 3, whereupon through the connection described the parts are thrown into position shown in Fig. 2 and the direction of travel of the tripper-frame again reversed. 1

When it is desired to hold the tripper stationary, this is done by operating the lever 57, whereupon the arm 54 is drawn forward and the roller 60 on plate 36 travelsup the inclined face 59, the plate 36 being lifted, so

as to rock the journal-plate 26 and throw both pinions 28 and 30 out-of'engagement withthe gear wheel 21. At'the-same time the brake-band is thrown into engagement with the brake-Wheel and any tendency of the rotation of the shaft 20 due to the travel of the belt 5' is prevented.

-What we claim is 1. In a device for operating a tripper for a I belt conveyer, the combination of a tripperframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking frame, oppositely-driven pinions carried by said rocking-frame, and means carried by said cable'for throwing said pinions alternately into engagement with said gear-wheel.

2. In a device for operating a tripper for a belt conveyer, thecombination of a tripperframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking 'franie, oppositely-driven pinions carried by said rocking frame, stops on said frame, and means carried by said cable for throwing said pinions alternately into engagement with said gear-wheel.

3. In a device for operating a tripper for a belt conveyer, the combination of a tripperframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking frame, a shaft on which-said rocking frame is -mounted, a gear-wheel on said shaft, oppositely-driven pinions on said rocking frame driven by said last-named gear-wheel, and means carried by said cable for throwing said pinions alternately into engagement with said gear-wheel.

4. In a device for operating a tripper for a belt conveyer, the combination of a tri )perframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking frame, oppositely-driven pinions carried by said rocking frame, a lever in the path of said cable, connections between saidlever and said rocking frame, and means vcarried by said cable for o eratin said lever to throw said pinions a ternate y into engagement with said gear-wheel.

5. In a device for operating a tripper for a belt conveyer, the combination of a tri )perframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking frame, oppositely-driven pinions carried by said rocking frame, a lever in the path of said cable, an actuating-plate connected to said lever, connections between said late and said rocking frame, and means carried by said cable for operating said lever to throw said pinions alternately into engagement with sai d ear-wheel.

6. In a device for operating a tripper for a belt conveyer, the combination of a tripperframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking frame,- oppositely-driven pinions carried by said rocking frame, a lever in the path of said cable, an actuating-plate connected to said rocking frame, a weighted arm having a sliding connection with said late, connections between said arm and sai lever, and means carried by said cable for operating said lever to throw said pinions alternately into engagement with said gear-wheel. v

7. In a device for operating a tripper for a belt conveyer, the combination of a tripperframe, a belt, an endless cable; mechanism for reversing the travel of said cable, and a yielding member on said cable adapted to engage said reversing mechanism to operate same.

8. In a device for operating a tripper for a belt conveyer, the combination of a tripperframe, a belt, an endless cable, mechanism for reversing the travel of said cable, a spiral spring on said cable, adapted to contact with said reversing mechanism, and an'enlargement on said cable back of said spring.

9. In a device for operating a tripper for a belt conveyer, the combination of a tripperframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, oppositelydriven pinions adapted to engage said gearwheel alternately, and means for throwing both of said pinions out of engagement with said gear-wheel.

10. In a device for operating a tripper for abeltconveyer, the combination of a tripperframe, a belt, an endless cable, a shaft for driving said cable, a gear-wheel, oppositelydriven pinions adapted to engage said gearwheel alternately, braking mechanism and means for operating said braking mechanism and throwing both of said pinions out' of engagement with said gear-wheel simultaneously.-

11. In a device for operating a tripper for a belt conveyer, the combination of a tri perframe, a belt, an endless cable, a sha t for driving said cable, a gear-wheel, oppositelydriven pinions adapted to engage said gearwheel alternately, a brake-wheel on said shaft, a brake-band, and means for operating said brake-band and throwing both of said pinions out of en agement with said gear-wheel simultaneous y. I Q

12. In a device for operating a tripper for driven pinions adapted to engage said gear-' wheel alternately, a brake-wheel on said shaft, a brake-band, mechanism for throwing said pinions out of engagement with said gear-wheel, and a lever connected to said mechanism and to said brake-band.

13. In a device for o erating a tripperfor' a belt conveyor, the com ination of a tri perframe, a belt, an endless cable, a sha t for driving said cable, a gear-wheel, a rocking frame, oppositely-driven inions in said frame, adapted to engage said gear-wheel, an actuating-plate connected to said rocking frame, an arm adapted to engage said actuating-plate to throw both of said pinions out of engagement with said gear-wheel, a lever and connections between said arm and said lever.

14. In a device for operating a tripper for a belt conve er, the combination of a tripperframe, a be t, an endless cable, a shaft for driving said cable, a gear-wheel, a rocking frame, oppositely-driven pinions in said frame, adapted to engage said gear-wheel, an actuating-plate connected to said rocking frame, an arm having a cam-face adapted to .engage said actuatin -plate to operate said plate to throw both 0 said inions out of engagement with said gear-w eel, a lever, and connections between said arm and said lever.

In testimony whereof we, the said ELLIOTT J. MASON and LEWIS J. RoBB, havehereunto set our hands.

- ELLIOTT J. MASON. LEWIS J. ROBB.

Witnesses:

F. W. WINTER, ROBERT C. ToTTEN. 

